Login / Register 0 items | $0.00 New @ KVR
Aug 21
RT @FantomGFX: @stuffiwrote VST’s I use are Synthmaster One, the old FM8, Memorymoon ME80, and Analog Lab. DAWs are pretty much down to tas…
Aug 21
RT @smhr1993: Listen to the FL_Studio mix. . . . #flstudio #flstudio11 #song #songs #track #pianoroll #synth #synthmaster #synthmasterOne #…

KV331 Audio was founded in 2012 by a dedicated team of engineers, musicians, and sound designers with the sole purpose of providing high-quality virtual instruments for musicians globally. Its flagship soft synth, SynthMaster, has over 24,000 licensed users in over 110 countries and received numerous awards from prestigious music technology publications around the world; while walking away from MusicTech Magazine's 2016 Gear Of The Year awards as a Gold Award Winner in the 'Best Software Instrument/Sample Library' category, MusicRadar readers recently ranked it number one in their '50 best VST/AU plugin synths in the world today' survey.

SynthMaster Player for iPad can be downloaded from the AppStore for free. Through November, Pro Upgrade is 50% OFF for $4.99, v2.7 Factory Presets Bank is 40% OFF for $2.99.

News & DealsMore

5 Jul 2018#KVRDeal (until Tuesday, September 4, 2018) KV331 Audio announces 30%-50% Off SynthMaster Summer Sale 3 Jul 2018KV331 Audio updates SynthMaster One iOS to v1.1 8 Jun 2018KV331 Audio releases SynthMaster One iOS 4 Apr 2018#KVRDeal Expired KV331 Audio announces 35%-50% Off Spring Sale through April 10 Jan 2018KV331 Audio updates SynthMaster and SythMaster Player to v2.9.6 22 Dec 2017KV331 Audio releases SynthMaster 2.9: Adds wavetable features, new factory presets, in-app-store and internationalization (I18N) support 6 Dec 2017KV331 Audio updates SynthMaster One to v1.1: adding new factory presets, in-app-store and critical fixes 30 Nov 2017#KVRDeal Expired KV331 Audio announces SynthMaster Track Contest with $2000 cash and software license prizes 22 Nov 2017#KVRDeal Expired KV331 Audio 50% Off "Black Friday Week Sale" between November 21-30 7 Nov 2017#KVRDeal Expired KV331 Audio announces 50% Off Sale for SynthMaster One and SynthMaster Preset Expansions through November 31 Jul 2017KV331 Audio updates SynthMaster One to v1.0.5 - adds AAX support and new factory presets 4 Jul 2017#KVRDeal Expired KV331 Audio Summer Sale: 30%-50% Off SynthMaster 3 Jul 2017KV331 Audio updates SynthMaster and SynthMaster Player to v2.8.10 with scaled UI support, new factory presets and critical bug fixes 20 Jun 2017KV331 Audio updates SynthMaster to v2.8.9 - adds resizeable UI support and 70 new factory presets 10 May 2017KV331 Audio updates SynthMaster One to v1.0.4 - Adds UI Scaling and Retina Support 3 Apr 2017#KVRDeal Expired KV331 Audio 20%-50% Off SynthMaster Spring Sale 31 Mar 2017KV331 Audio updates SynthMaster One to v1.0.2 - New factory presets and MIDI Program Change support 27 Feb 2017KV331 Audio releases SynthMaster One Wavetable Synthesizer for Mac & Win 23 Nov 2016#KVRDeal Expired KV331 Audio SynthMaster 50% Off "Black Friday Week Sale" between November 21-30 11 Nov 2016#KVRDeal Expired KV331 Audio Song Competition: $2000 cash prizes for SynthMaster, SynthMaster Player and SynthMaster Player for iPad

Show even more...

KVR Forum
(Latest Posts)

Someone scammed me!
by Ma2L at 21 Aug 2018, 04:30

Trying to Purchase Everything Upgrade
by zzz00m at 20 Aug 2018, 15:04

SynthMaster vs Waves Codex Wavetable Synth or Propellerheads Europa (Wavetable modulation)
by rockmachine at 13 Aug 2018, 07:10

How do you fully remove a modulation parameter in SynthMaster
by _TIP_ at 12 Aug 2018, 18:53

SynthMaster Demo Songs go there: Post your links
by El Bura at 12 Aug 2018, 00:35

Organizing User Banks & Presets
by El Bura at 12 Aug 2018, 00:00

SynthMaster 2.6, 2.7 roadmap, add your feature requests...
by GeorD Music at 9 Aug 2018, 06:43

Will SynthMaster 3.0 feature an updated GUI?
by Prajch at 7 Aug 2018, 07:57

Controlling FM amount in synthmaster 2.9
by Apratim at 7 Aug 2018, 05:46

Everything Bundle Presets Ring Out and Unusable
by lectropunk at 3 Aug 2018, 13:00

WannaCry in GUIEditor
by zzz00m at 31 Jul 2018, 07:07

Unresponsive Developers Should be banned from KVR
by pumafred at 24 Jul 2018, 07:24

Upcoming soundsets for Synthmaster One
by VELLTONE MUSIC at 19 Jul 2018, 01:03

What does KV331 mean???
by BlackWinny at 18 Jul 2018, 04:12

Upgrade How???
by cis-didge at 17 Jul 2018, 09:19

by VELLTONE MUSIC at 15 Jul 2018, 23:32

Synthmaster One license e-mail
by benheman at 9 Jul 2018, 09:01

synthmaster cm problems
by mabian at 8 Jul 2018, 00:00

After Registration, how to install bonus content?
by lester_zepellin at 30 Jun 2018, 17:47

How to reach our support
by VELLTONE MUSIC at 25 Jun 2018, 11:02



Discussion: Active
7 May 2016 at 2:12pm

Crappy support.

Tried to acquire a SynthMaster license second hand. Paid the seller and he contacted KV331 transfer the license. A week went by - with no response from KV331. Had to cancel the deal. The seller did what he could, but KV331 just did not respond. Never getting any of their products.


7 May 2016 at 7:05pm

Sorry that you had this issue. I've had good experiences with KV331 myself. They have a lot of sales, if you sign up for their newsletter or follow them on social media you can save money that way. Buying used software from third party sellers is kind of hit-and-miss IME. I'd be hesitant to formulate your opinions on a company based on your experiences with a third party seller.

7 May 2016 at 2:50pm

I don't think the licenses are transferable. Synthmaster is a really nice synth, never had any problems with mine.

7 May 2016 at 3:06pm

Had several questions through the years and Bulent has always been great. One of my favorite and most used VSTs.




31 May 2016 at 10:14pm

Synthmaster 2.8 Doesn't Even Load On Windows 7 x64 Ableton Live 9.6.1


Uinstalled Synthmater from Control Panel
Deleted Documents/Synthmaster
Deleted Documents/Synthmater27temp
Deleted Program files/VstPlugins/Kv331 Audio (my custom location for Synthmater 2.8)
Deleted Program Files (x86)/VstPlugins/Kv331 Audio (my custom location for Synthmater 2.8)

Fresh install.

Copied My personal License File to Documents/Synthmaster.

Emtpy project, added Synthmater 2.8 to a new MIDI track. . .

"Ableton Live"
"A serious program error has occured. Live will shut down after this message box is closed.

Please restart Live and follow the instructions in the 'Report A Crash' lesson that will appear in Live's Help View."


2.8 wasn't tested enough that's for sure. :/.

Tim Otholt.


31 May 2016 at 11:08pm

Thanks for the info. I'm just finishing up on a game OST and was about to upgrade... then thought... WAIT.....*phew*.

5 August 2017 at 5:20pm

not sure if this is where i report a bug, but in reason 9.5 I'm using synth master one, and when i open the plugin to modify an FM patch I'm making the semitones and octave changes when ever i close and reopen the plugin.

each time i close and re open the semitones are set to 11 and the pitch octaves are at -3.

Please log in to join the discussion